The best times to visit Bannockburn for ideal weather are

May 7th to July 15th

based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.



Other Bannockburn Travel Info

Weather in Bannockburn


Average temperatures in Bannockburn vary drastically. Considering humidity, temperatures feel cold for about half of the year and otherwise nice with a fair chance of precipitation about half of the year. The area is less temperate than some — in the 34th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Bannockburn, the hottest months are July, August, and then June. See average monthly temperatures below. The warmest time of year is generally mid July where highs are regularly around 86.3°F (30.2°C) with temperatures rarely dropping below 66.5°F (19.2°C) at night.

Bannockburn Temperatures (Fahrenheit)


Bannockburn Temperatures (Celsius)


“Feels-Like” Temperatures

The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.

Bannockburn Perceived Temperature (F)


Bannockburn Perceived Temperature (C)



Average Bannockburn Temperatures by Month

Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.

Show Fahrenheit

Month Avg. High (°F) Avg. Mean (°F) Avg. Low (°F)
Jan 31.8 23.5 16.2
Feb 32.4 24.3 16.9
Mar 48.2 38.1 29.8
Apr 59.9 48.3 38.9
May 72.1 60.1 49.6
Jun 80.7 69.4 59.4
Jul 84.9 74.4 64.6
Aug 83 72.9 63.7
Sep 76.1 65.3 55.6
Oct 64.1 53.7 44.4
Nov 50.3 41.1 32.6
Dec 37.5 30.2 23.3

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan -0.1 -4.7 -8.8
Feb 0.2 -4.3 -8.4
Mar 9 3.4 -1.2
Apr 15.5 9.1 3.8
May 22.3 15.6 9.8
Jun 27.1 20.8 15.2
Jul 29.4 23.6 18.1
Aug 28.3 22.7 17.6
Sep 24.5 18.5 13.1
Oct 17.8 12.1 6.9
Nov 10.2 5.1 0.3
Dec 3.1 -1 -4.8



Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Bannockburn are January, February, and then November. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around mid January. For example, on the week of January 15th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in late June with an average of 2 days of significant precipitation the week of June 25th.

When can you find snow in Bannockburn? Weather stations report no annual snow. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.

Chance of Precipitation

The graph below shows the % chance of rainy and snowy days in Bannockburn.

Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Bannockburn (in).

Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 9% 0 1.1
Feb 13% 0 1.4
Mar 14% 0 1.5
Apr 19% 0 2.3
May 21% 0 3.2
Jun 29% 0 4.4
Jul 19% 0 3.7
Aug 24% 0 4.6
Sep 17% 0 3
Oct 17% 0 2.3
Nov 13% 0 1.6
Dec 19% 0 2.2

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 9 0 2.8
Feb 13 0 3.6
Mar 14 0 3.8
Apr 19 0 5.8
May 21 0 8.1
Jun 29 0 11.2
Jul 19 0 9.4
Aug 24 0 11.7
Sep 17 0 7.6
Oct 17 0 5.8
Nov 13 0 4.1
Dec 19 0 5.6


Humidity and Wind

Bannockburn has some high humidity months, with other comfortably humid months. The least humid month is April (51.9% relative humidity), and the most humid month is December (66.4%).

Wind in Bannockburn is usually calm. The windiest month is April, followed by January and February. April’s average wind speed of around 8 knots (9.2 MPH or 14.8 KPH) is considered “a gentle breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in early April where average top sustained speeds reach 15.5 knots, which is considered a moderate breeze.

Relative Humidity (%)

The graph below shows the average % humidity by month in Bannockburn.

Avg. Relative Humidity


The graph below shows wind speed (max and average) in knots.

Max Sustained Wind
Average Daily Wind

Average Wind Speeds

Show Wind Speeds

All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.

Month Avg. Wind Avg. Wind Feel Sustained High Wind High Wind Feel
Jan 8 Gentle breeze 13.9 Significant breeze
Feb 7.6 Gentle breeze 13.5 Significant breeze
Mar 7.3 Gentle breeze 13.7 Significant breeze
Apr 8 Gentle breeze 15 Significant breeze
May 6.8 Light breeze 13.6 Significant breeze
Jun 6 Light breeze 13.4 Significant breeze
Jul 5.3 Light breeze 12.3 Significant breeze
Aug 4.7 Light breeze 11.4 Significant breeze
Sep 5.3 Light breeze 11.7 Significant breeze
Oct 6.4 Light breeze 13 Significant breeze
Nov 7.5 Gentle breeze 13.6 Significant breeze
Dec 7.3 Gentle breeze 13.2 Significant breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 60.3%
Feb 58.7%
Mar 55.3%
Apr 51.9%
May 53.3%
Jun 58.2%
Jul 55.8%
Aug 60.1%
Sep 60.6%
Oct 58.1%
Nov 57.4%
Dec 66.4%


Is it Safe to Travel to Bannockburn?

Our best data indicates this area is generally safe. As of Dec 04, 2023 there are no travel advisories or warnings for the United States; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Dec 04, 2023.


The Busiest and Least Crowded Months

The busiest month for tourism in Bannockburn, IL, US is July, followed by June and May. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Bannockburn in November. Those willing to visit at these times will likely find it the least expensive month.

Estimated Tourism by Month


Most Popular Months to Visit

Tourists Seeking Accommodations

Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Tourism data for this area is slightly extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 47.4 in November means 47.4% of the tourists vs. July.



Overall Bannockburn Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderately cold. Highs range from 76.8°F (24.9°C) and 34.6°F (1.4°C) with far warmer temperatures in the later months. Rain is somewhat common with 4 to 7 days of significant precipitation per month. Spring is the second busiest for tourism, which makes it a good time for those looking for things to do.

Summer (June through August)

The middle-year months have very comfortable weather with high temperatures that are comfortable. These months see the most precipitation with 6 to 9 days of precipitation per month. June – August is the busiest season for tourism in Bannockburn, so lodging and other accommodations may cost more than usual.

Fall (September through November)

Fall daily highs range from 79.9°F (26.6°C) and 43°F (6.1°C), which will feel chilly given the humidity and wind. It rains or snows a significant amount: 4 to 5 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.

Winter (December through February)

Weather is far too cold this time of year in Bannockburn to be enjoyable for warm weather travelers. The average high during this season is between 37.9°F (3.3°C) and 29.7°F (-1.3°C). On average, it rains or snows a fair amount: 3 to 6 times per month. These times of year are fairly slow with tourists.


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